Liquid filtration cartridge and a system for liquied filtration

Abstract

The present disclosure provides a filter cartridge, a filtration system and a process for filtering and disinfecting water for medical and/or dental purposes. Filter cartridge (10) comprises: (a) a vessel (16) comprising a first cavity; (b) a filter media (18) having a second cavity, wherein said filter media is disposed in said vessel thereby forming a first compartment therebetween an outer surface of said filter media (18) and an inner surface of said vessel (16); (c) a disinfectant media disposed in said second cavity; (d) a first end cap (14) attached to a first end of said vessel (16), wherein said first end cap (14) is configured to form a first outlet (12).

We claim: 
     
         1 . A filter cartridge comprising:
 a. a vessel comprising a first cavity;   b. a filter media having a second cavity disposed in the vessel thereby forming a first compartment therebetween an outer surface of the filter media and an inner surface of the vessel;   c. a disinfectant media disposed in the second cavity;   d. a first end cap attached to a first end of the vessel, wherein the first end cap is configured to form a first outlet.   
     
     
         2 . The filter cartridge of  claim 1 , wherein the vessel comprises one or more polymers. 
     
     
         3 . The filter cartridge of  claim 1 , wherein the filter cartridge is configured to be disposed in a dental chair water reservoir. 
     
     
         4 . The filter cartridge of  claim 1 , wherein the vessel comprises one or more openings. 
     
     
         5 . The filter cartridge of  claim 1 , wherein the filter media is pleated. 
     
     
         6 . The filter cartridge of  claim 1 , wherein the filter media is tubular shape. 
     
     
         7 . The filter cartridge of  claim 1 , wherein the filter media has thickness in the range of 1 mm to 2 mm. 
     
     
         8 . The filter cartridge of  claim 1 , wherein the filter media is hydrophobic. 
     
     
         9 . The filter cartridge of  claim 1 , wherein the filter media has a pore size in the range of from 0.9 to 1.8 micron nominal. 
     
     
         10 . The filter cartridge of  claim 1 , wherein the filter media is capable of removing particles having a diameter in the range of from 20 to 800 nm. 
     
     
         11 . The filter cartridge of  claim 1 , wherein the filter media is capable of removing particles having a diameter in the range of from 20 to 400 nm. 
     
     
         12 . The filter cartridge of  claim 1 , wherein the filter media is capable of withstanding a pressure in the range of up to 80 psi. 
     
     
         13 . The filter cartridge of  claim 1 , wherein the filter media is capable of removing substantial portion of bacteria, virus, cysts, and combinations thereof. 
     
     
         14 . The filter cartridge of  claim 4 , wherein the filter media is coupled to said vessel and said first end cap thereby forming filtration path through the one or more openings into the first compartment, and then into the second cavity and subsequently out via an outlet in first end cap. 
     
     
         15 . The filter cartridge of  claim 1 , wherein the disinfectant media comprises iodine, silver or combinations thereof. 
     
     
         16 . The filter cartridge of  claim 1 , wherein the disinfectant media comprises a solid or a liquid composition. 
     
     
         17 . The filter cartridge of  claim 1 , wherein the first outlet extends outwardly and comprises one or more angled away projections. 
     
     
         18 . A filtration system comprising:
 a. a water reservoir;   b. an air pressure source; and   c. a filter cartridge comprising:
 a vessel comprising a first cavity; 
 a filter media having a second cavity disposed in the vessel thereby forming a first compartment therebetween an outer surface of the filter media and an inner surface of the vessel; 
 a disinfectant media disposed in the second hollow cavity; 
 a first end cap attached to a first end of the vessel, wherein the first end cap is configured to form a first outlet. 
   
     
     
         19 . A process for filtering water comprising the steps of:
 a. providing a filtration system comprising;
 a water reservoir; 
 an air pressure source; and 
 a filter cartridge comprising:
 a vessel comprising a first cavity and one or more openings; 
 a filter media having a second cavity disposed in the vessel thereby forming a first compartment therebetween an outer surface of the filter media and an inner surface of the vessel; 
 a disinfectant media disposed in the second cavity; 
 a first end cap attached to a first end of said vessel, wherein the first end cap is configured to form a first outlet; 
 
   b. providing water in the water reservoir;   c. pressurizing the water via said air pressure source; and   d. channeling the pressurized water from the water reservoir via the one or more openings into the second cavity and in contact with the disinfectant media;
 thereby filtering and disinfecting the water before exiting the filtration system via the first outlet.